function ShowTip(tip,model) {
	var $tip = $('#tip');
	if ($tip.length == 0) {
		$tip = $('<div id="tip" style="position:absolute;top:50px;left: 50%;z-index:9999"></div>');
		model.append($tip);
	}
	$tip.stop(true).prop('class', 'ui secondary segment').text(tip).css(
			'margin-left', -$tip.outerWidth()/ 2).fadeIn(500).delay(2000)
			.fadeOut(500);
}

function dow(){
	$('.ui.labeled.icon.sidebar')
		.sidebar('setting', 'transition','overlay')
		.sidebar('toggle');
}

